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de Oliveira G, de Andrade Rodrigues L, Souza da Silva AA, Gouvea LC, Silva RCL, Sasso-Cerri E, Cerri PS. Reduction of osteoclast formation and survival following suppression of cytokines by diacerein in periodontitis. Biomed Pharmacother 2024; 177:117086. [PMID: 39013222 DOI: 10.1016/j.biopha.2024.117086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/29/2024] [Accepted: 07/01/2024] [Indexed: 07/18/2024] Open
Abstract
Periodontitis causes an increase in several bioactive agents such as interleukins (IL), tumor necrosis factor (TNF)-α and receptor activator of NF-kB ligand (RANKL), which induce the osteoclast formation and activity. Since diacerein exerts anti-TNF-α and anti-IL-1 effects, alleviating bone destruction in osteoarthritis, we investigated whether this drug inhibits the formation and survival of osteoclast in the periodontitis. Rats were distributed into 3 groups: 1) group with periodontitis treated with 100 mg/kg diacerein (PDG), 2) group with periodontitis treated with saline (PSG) and group control (CG) without any treatment. After 7, 15 and 30 days, the maxillae were collected for light and transmission electron microscopy analyses. Gingiva samples were collected to evaluate the mRNA levels for Tnf, Il1b, Tnfsf11 and Tnfrsf11b by RT-qPCR. In PDG, the expression of Tnf and Il1b genes reduced significantly compared to PSG, except for Tnf expression at 7 days. The number of osteoclasts reduced significantly in the PDG in comparison with PSG at 7 and 15 days. In all periods, the IL-6 immunoexpression, RANKL/OPG immunoexpression and mRNA levels of Tnfsf11/Tnfrsf11b ratio were significantly lower in PDG than in PSG. PDG exhibited significantly higher frequency of TUNEL-positive osteoclasts than in PSG and CG at all time points. Osteoclasts with caspase-3-immunolabelled cytoplasm and nuclei with masses of condensed chromatin were observed in PDG, confirming osteoclast apoptosis. Diacerein inhibits osteoclastogenesis by decreasing Tnf and Il1b mRNA levels, resulting in decreased RANKL/OPG ratio, and induces apoptosis in osteoclasts of alveolar process of rat molars with periodontitis.
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Affiliation(s)
- Gabriella de Oliveira
- São Paulo State University (UNESP), School of Dentistry, Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Araraquara, SP, Brazil
| | - Lucas de Andrade Rodrigues
- São Paulo State University (UNESP), School of Dentistry, Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Araraquara, SP, Brazil
| | | | - Lays Cristina Gouvea
- São Paulo State University (UNESP), School of Dentistry, Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Araraquara, SP, Brazil
| | - Renata Cristina Lima Silva
- São Paulo State University (UNESP), School of Dentistry, Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Araraquara, SP, Brazil
| | - Estela Sasso-Cerri
- São Paulo State University (UNESP), School of Dentistry, Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Araraquara, SP, Brazil
| | - Paulo Sérgio Cerri
- São Paulo State University (UNESP), School of Dentistry, Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Araraquara, SP, Brazil.
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Del Rio Cantero N, Mourelle Martínez MR, Sagastizabal Cardelús B, De Nova García JM. Influence of zoledronic acid and pamidronate on tooth eruption in children with osteogenesis imperfecta. Bone 2024; 182:117069. [PMID: 38458305 DOI: 10.1016/j.bone.2024.117069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/15/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
INTRODUCTION Osteogenesis imperfecta (OI) is a congenital disease comprising a heterogeneous group of inherited connective tissue disorders. The main treatment in children is bisphosphonate therapy. Previous animal studies have shown that bisphosphonates delay tooth eruption. The aim of this study is to determine whether patients with OI treated with pamidronate and/or zoledronic acid have a delayed eruption age compared to a control group of healthy children. METHODS An ambispective longitudinal cohort study evaluating the age of eruption of the first stage mixed dentition in a group of children with OI (n = 37) all treated with intravenous bisphosphonates compared with a group of healthy children (n = 89). Within the study group, the correlation (Pearson correlation test) between the type of medication administered (pamidronate and/or zoledronic acid) and the chronology of tooth eruption is established, as well as the relationship between the amount of cumulative dose received and tooth eruption. RESULTS The age of eruption of the study group was significantly delayed compared to the age of eruption of the control group for molars and lateral incisors (p < 0.05). Patients who received higher cumulative doses had a delayed eruption age compared to those with lower cumulative doses (p < 0.05). There is a high positive correlation between age of delayed tooth eruption and Zoledronic acid administration. CONCLUSION Patients with OI have a delayed eruption of the 1st stage mixed dentition compared to a control group of healthy children. This delayed eruption is directly related to the cumulative dose of bisphosphonates and the administration of zoledronic ac.
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Affiliation(s)
- Natalia Del Rio Cantero
- Department of Dental Clinical Specialities, School of Dentistry, Complutense University of Madrid, 28040 Madrid, Spain.
| | - María Rosa Mourelle Martínez
- Department of Dental Clinical Specialities, School of Dentistry, Complutense University of Madrid, 28040 Madrid, Spain.
| | | | - Joaquín Manuel De Nova García
- Department of Dental Clinical Specialities, School of Dentistry, Complutense University of Madrid, 28040 Madrid, Spain.
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Arai Y, English JD, Ono N, Ono W. Effects of antiresorptive medications on tooth root formation and tooth eruption in paediatric patients. Orthod Craniofac Res 2023; 26 Suppl 1:29-38. [PMID: 36714970 PMCID: PMC10864015 DOI: 10.1111/ocr.12637] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/09/2023] [Accepted: 01/24/2023] [Indexed: 01/31/2023]
Abstract
Tooth eruption is a pivotal milestone for children's growth and development. This process involves with the formation of the tooth root, the periodontal ligament (PDL) and the alveolar bone, as the tooth crown penetrates the bone and gingiva to enter the oral cavity. This review aims to outline current knowledge of the adverse dental effects of antiresorptive medications. Recently, paediatric indications for antiresorptive medications, such as bisphosphonates (BPs), have emerged, and these agents are increasingly used in children and adolescents to cure pathological bone resorption associated with bone diseases and cancers. Since tooth eruption is accompanied by osteoclastic bone resorption, it is expected that the administration of antiresorptive medications during this period affects tooth development. Indeed, several articles studying human patient cohorts and animal models report the dental defects associated with the use of these antiresorptive medications. This review shows the summary of the possible factors related to tooth eruption and introduces the future research direction to understand the mechanisms underlying the dental defects caused by antiresorptive medications.
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Affiliation(s)
- Yuki Arai
- Department of Orthodontics, University of Texas Health Science Center at Houston School of Dentistry, Houston, Texas, USA
| | - Jeryl D. English
- Department of Orthodontics, University of Texas Health Science Center at Houston School of Dentistry, Houston, Texas, USA
| | - Noriaki Ono
- Department of Diagnostic & Biomedical Sciences, University of Texas Health Science Center at Houston School of Dentistry, Houston, Texas, USA
| | - Wanida Ono
- Department of Orthodontics, University of Texas Health Science Center at Houston School of Dentistry, Houston, Texas, USA
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4
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Calsa B, Bortolança TJ, Masiero BC, Esquisatto MAM, de Oliveira CA, Catisti R, Santamaria-Jr M. Maxillary and dental development in the offspring of protein-restricted female rats. Eur J Oral Sci 2022; 130:e12895. [PMID: 36199171 DOI: 10.1111/eos.12895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/31/2022] [Indexed: 12/13/2022]
Abstract
Nutritional restriction during developmental periods impairs organ physiology. Female rats were subjected to protein restriction during pregnancy and lactation to analyze dental and maxillary development. Four exposure groups were considered: normal-protein diet during pregnancy and lactation (NP, 17% casein), low-protein diet during lactation (LP-L, 6% casein), low-protein diet during pregnancy and lactation (LP), and low-protein diet during pregnancy (LP-G). Maxillae from 15-day-old male pups were collected. All protein-restricted groups presented increased dentin thickness and reduced alveolar bone area. When protein restriction was applied during both gestation and lactation (LP), harmful effects were observed in the form of loss of protective OPG (osteoprotegerin) in tooth epithelium-mesenchyme, due to higher RANKL expression, delay in odontoblast maturation, less dental pulp vascularity, reduction in amount of alveolar bone, and less matrix mineralization. In the LP-L group, effects of protein restriction seemed less harmful, and despite less alveolar bone, the enhancement in BMP-7, VEGF, and RANKL seems a compensatory signal to maintain maxillary osteogenesis. In LP-G animals, Dspp expression was higher, suggesting a delay in odontoblast maturation or expression recuperation. In conclusion, maternal protein restriction affects dental and maxillary development. A low-protein diet only in gestation allows for normal development. A low-protein diet during gestation-lactation results in impaired odontogenesis that may increase susceptibility of dental anomalies.
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Affiliation(s)
- Bruno Calsa
- Graduate Program of Biomedical Sciences, Herminio Ometto University Center, Araras, São Paulo, Brazil
| | | | - Beatriz Calloni Masiero
- Graduate Program of Biomedical Sciences, Herminio Ometto University Center, Araras, São Paulo, Brazil
| | | | - Camila Andrea de Oliveira
- Graduate Program of Biomedical Sciences, Herminio Ometto University Center, Araras, São Paulo, Brazil
| | - Rosana Catisti
- Graduate Program of Biomedical Sciences, Herminio Ometto University Center, Araras, São Paulo, Brazil
| | - Milton Santamaria-Jr
- Graduate Program of Biomedical Sciences, Herminio Ometto University Center, Araras, São Paulo, Brazil.,Graduate Program of Orthodontics, Herminio Ometto University Center, Araras, São Paulo, Brazil
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Zeng L, He H, Sun M, Gong X, Zhou M, Hong Y, Wu Y, Chen X, Chen Q. Runx2 and Nell-1 in dental follicle progenitor cells regulate bone remodeling and tooth eruption. Stem Cell Res Ther 2022; 13:486. [PMID: 36175952 PMCID: PMC9524038 DOI: 10.1186/s13287-022-03140-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/15/2022] [Indexed: 11/10/2022] Open
Abstract
Dental follicles are necessary for tooth eruption, surround the enamel organ and dental papilla, and regulate both the formation and resorption of alveolar bone. Dental follicle progenitor cells (DFPCs), which are stem cells found in dental follicles, differentiate into different kinds of cells that are necessary for tooth formation and eruption. Runt‐related transcription factor 2 (Runx2) is a transcription factor that is essential for osteoblasts and osteoclasts differentiation, as well as bone remodeling. Mutation of Runx2 causing cleidocranial dysplasia negatively affects osteogenesis and the osteoclastic ability of dental follicles, resulting in tooth eruption difficulties. Among a variety of cells and molecules, Nel-like molecule type 1 (Nell-1) plays an important role in neural crest-derived tissues and is strongly expressed in dental follicles. Nell-1 was originally identified in pathologically fused and fusing sutures of patients with unilateral coronal synostosis, and it plays indispensable roles in bone remodeling, including roles in osteoblast differentiation, bone formation and regeneration, craniofacial skeleton development, and the differentiation of many kinds of stem cells. Runx2 was proven to directly target the Nell-1 gene and regulate its expression. These studies suggested that Runx2/Nell-1 axis may play an important role in the process of tooth eruption by affecting DFPCs. Studies on short and long regulatory noncoding RNAs have revealed the complexity of RNA-mediated regulation of gene expression at the posttranscriptional level. This ceRNA network participates in the regulation of Runx2 and Nell-1 gene expression in a complex way. However, non-study indicated the potential connection between Runx2 and Nell-1, and further researches are still needed.
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Affiliation(s)
- Li Zeng
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Hong He
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China. .,Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China.
| | - Mingjie Sun
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Xinyi Gong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Mengqi Zhou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Yaya Hong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Yongjia Wu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Xuepeng Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China. .,Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China.
| | - Qianming Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China. .,Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China.
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Inhibition of osteoclastogenesis after bisphosphonate therapy discontinuation: an in vitro approach. J Mol Histol 2022; 53:669-677. [PMID: 35701706 DOI: 10.1007/s10735-022-10083-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 05/26/2022] [Indexed: 10/18/2022]
Abstract
Osteoclasts are specialized cells that degrade and resorb bone. Bisphosphonates (BPs) are drugs with well-known capacity to inhibit the resorption of mineralized tissues. Nitrogen-containing BPs, like alendronate (ALN) and zoledronic acid (ZA), inactivate osteoclast activity mostly by alterations on the cytoskeleton architecture of the cell. In this study, we used an in vitro model to test the hypothesis that bisphosphonates may have inhibitory effects on the osteoclastogenesis and osteoclast activity after the therapy was discontinued. Primary osteoclasts were generated from mouse bone marrow in media supplemented with 1,25-dihydroxyvitamin D3 and cultivated over bones pre-treated with ALN and ZA. The pre-saturation of the bone slices with bisphosphonates did not affect cell viability. We found, however, that by disrupting the gene expression of RANKL and OPG the osteoclastogenesis and resorption activity of osteoclasts was significantly disturbed. These inhibitory effects were confirmed by scanning electron microscopy resorption assay, assessment of osteoclast ultrastructure, and by gene expression analysis of TRAP and Cathepsin K. In conclusion, ALN and ZA adhered to the bone matrix reduced the osteoclast activity in vitro.
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7
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Function of Dental Follicle Progenitor/Stem Cells and Their Potential in Regenerative Medicine: From Mechanisms to Applications. Biomolecules 2021; 11:biom11070997. [PMID: 34356621 PMCID: PMC8301812 DOI: 10.3390/biom11070997] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/04/2021] [Accepted: 07/04/2021] [Indexed: 02/06/2023] Open
Abstract
Dental follicle progenitor/stem cells (DFPCs) are a group of dental mesenchyme stem cells that lie in the dental follicle and play a critical role in tooth development and maintaining function. Originating from neural crest, DFPCs harbor a multipotential differentiation capacity. More importantly, they have superiorities, including the easy accessibility and abundant sources, active self-renewal ability and noncontroversial sources compared with other stem cells, making them an attractive candidate in the field of tissue engineering. Recent advances highlight the excellent properties of DFPCs in regeneration of orofacial tissues, including alveolar bone repair, periodontium regeneration and bio-root complex formation. Furthermore, they play a unique role in maintaining a favorable microenvironment for stem cells, immunomodulation and nervous related tissue regeneration. This review is intended to summarize the current knowledge of DFPCs, including their stem cell properties, physiological functions and clinical application potential. A deep understanding of DFPCs can thus inspire novel perspectives in regenerative medicine in the future.
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8
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Calsa B, Masiero BC, Esquisatto MAM, Catisti R, Santamaria M. Gestational protein restriction alters the RANKL/OPG system in the dental germ of offsprings. J Oral Biol Craniofac Res 2020; 10:743-746. [PMID: 33101893 DOI: 10.1016/j.jobcr.2020.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 01/19/2023] Open
Abstract
Evaluate the dentinogenesis in the offspring of rats submitted to gestational protein restriction (GPR). DESIGN The offspring were evaluated at the 21st day of gestation (21 dG). Assessments were made of morphological parameters and the RANKL/OPG system - bone tissue maturation markers - in the upper incisor tooth germ. Pregnant 10-week-old female Wistar rats were divided into normal protein (NP, 17% casein, n = 5) and low protein (LP, 6% casein, n = 5) diet groups. At 21 dG, the offspring maxillae were collected for histomorphometric and immunohistochemical analyses. RESULTS The LP group showed decreased thickness of the dentin and odontoblast cell layers on the tooth germ. GPR led to decreased OPG expression and increased RANKL expression in the incisor germ. CONCLUSION The results suggested that gestational protein restriction altered odontoblast RANKL/OPG expression and decreased dentin matrix deposition and thickness in tooth development.
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Affiliation(s)
- Bruno Calsa
- Graduate Program in Biomedical Sciences, University Center of Hermínio Ometto Foundation - FHO, Araras, SP, Brazil
| | - Beatriz Calloni Masiero
- Graduate Program in Biomedical Sciences, University Center of Hermínio Ometto Foundation - FHO, Araras, SP, Brazil
| | | | - Rosana Catisti
- Graduate Program in Biomedical Sciences, University Center of Hermínio Ometto Foundation - FHO, Araras, SP, Brazil
| | - Milton Santamaria
- Graduate Program in Biomedical Sciences, University Center of Hermínio Ometto Foundation - FHO, Araras, SP, Brazil.,Graduate Program in Orthodontics, University Center of Hermínio Ometto Foundation, Araras, SP, Brazil
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9
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Lin X, Zhang HQ, Shou LH, Shen XL, Zhang ZX. Efficacy of vitamin D plus calcium with/without alendronate on bone metabolism in immunologic thrombocytopenic purpura patients with steroid treatment: Nine-month results of a randomized, double-blinded, controlled trial. Exp Ther Med 2019; 18:1391-1398. [PMID: 31363377 DOI: 10.3892/etm.2019.7694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Accepted: 12/31/2018] [Indexed: 11/06/2022] Open
Abstract
Bone loss is a prominent complication in immunologic thrombocytopenic purpura (ITP) patients with steroid treatment. Anti-osteoporotic medications are applied as a therapeutic strategy to prevent bone deterioration in ITP patients. However, the skeletal protective effect of alendronate (ALN) in ITP patients has been rarely reported. The present study was performed to determine whether ALN reduces bone loss in ITP patients. A total of 40 ITP patients with steroid treatment were randomized into a placebo group [n=20; caltrate D (CalD)] and an ALN (10 mg/day) + CalD group (n=20). The patients received CalD or CalD + ALN treatment for 9 months. The primary outcomes were bone mineral density (BMD) in the lumbar vertebrae (L1-L4), femoral neck and total hip, as well as bone metabolism markers. The results indicated that the BMD of the lumbar vertebrae (L1-L4), femoral neck and total hip was significantly increased after ALN + CalD treatment for at 6 and 9 months compared with the baseline. Compared with CalD treatment alone, CalD combined with ALN significantly elevated the BMD at the three skeletal sites at 9 months. Compared with the baseline levels or CalD treatment alone, ALN together with CalD treatment markedly reduced urinary Ca excretion and the serum levels of the bone resorption markers tartrate resistant acid phosphatase 5b and C-terminal telopeptides of type 1 collagen, at 9 months. In conclusion, treatment with ALN together with CalD significantly elevated the BMD at three skeletal sites, and inhibited urinary Ca excretion and the activity of bone resorption markers in patients with ITP.
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Affiliation(s)
- Xia Lin
- Department of Hematology, The First People's Hospital of Huzhou, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang 313000, P.R. China
| | - Hui-Qi Zhang
- Department of Hematology, The First People's Hospital of Huzhou, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang 313000, P.R. China
| | - Li-Hong Shou
- Department of Hematology, Huzhou Central Hospital, Huzhou, Zhejiang 313003, P.R. China
| | - Xiang-Li Shen
- Department of Hematology, The First People's Hospital of Huzhou, The First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang 313000, P.R. China
| | - Zong-Xin Zhang
- Clinical Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang 313003, P.R. China
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Maeda Y, Miwa Y, Sato I. Distribution of the neuropeptide calcitonin gene-related peptide-α of tooth germ during formation of the mouse mandible. Ann Anat 2018; 221:38-47. [PMID: 30240909 DOI: 10.1016/j.aanat.2018.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/19/2018] [Accepted: 09/01/2018] [Indexed: 11/16/2022]
Abstract
Calcitonin gene-related peptide-α (CGRPα) is a neurotransmitter that is related to bone formation during development. However, CGRP expression is not well known to affect the formation of teeth during development. During tooth germ development, the relationships among CGRPα, calcitonin receptor-like receptor (CRLR), amelogenin (AMELX), dentin sialophosphoprotein (DSPP), osteopontin (OPN) and osteocalcin (OCN) are unclear despite various tooth and osteogenesis markers. Our real-time RT-PCR results showed that the expression levels of CGRPα mRNA gradually decreased, in contrast to the mRNA abundances of CRLR, AMELX, DSPP, OPN, and OCN, which rapidly increased from E14.5 to P1 in the mandible. In situ hybridization using an antisense probe for CGRPα mRNA showed significant localized expression levels around the tooth bud at E14.5 and epithelial cells near the dental ledge and outer and inner enamel epithelium at E17.5 compared to those at P1. The localization of the anti-CGRPα antibody reaction revealed a strong positive reaction at the surface layer of oral epithelial cells at E14.5 and oral epithelial cells of the dental lamina around the dental ledge depression in the mandible of E17.5 mice using immunohistochemical methods The different anti-CGRPα reaction revealed its important roles during tooth formation at the postnatal stage. CGRPα mRNA was also detected in the interactions of tooth germ with the formation of odontoblast and amelobast layers from dental papilla and inner enamel epithelium. CGRPα may also be related to tooth germ development. Furthermore, CGRPα is an important tooth and bone formation marker, and bone cells provide further evidence of a role in mandibular development in contrast to inflammatory systems.
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Affiliation(s)
- Yuuki Maeda
- Division of Anatomy, Nippon Dental University Graduate School of Life Dentistry, Tokyo, Japan; Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Yoko Miwa
- Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Iwao Sato
- Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
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Effects of bisphosphonates on osteogenesis and osteoclastogenesis signaling during the endochondral ossification of growing rats. Cell Tissue Res 2017; 368:287-300. [DOI: 10.1007/s00441-017-2574-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 12/28/2016] [Accepted: 01/11/2017] [Indexed: 11/25/2022]
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12
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Hernandez M, Phulpin B, Mansuy L, Droz D. Use of new targeted cancer therapies in children: effects on dental development and risk of jaw osteonecrosis: a review. J Oral Pathol Med 2016; 46:321-326. [DOI: 10.1111/jop.12516] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Magali Hernandez
- Pediatric Dentistry Department; CHRU of Nancy; Vandoeuvre-les-Nancy France
- Pediatric Dentistry Department; Faculty of Dentistry; Nancy France
| | - Bérengère Phulpin
- Head and Neck Surgery and Dental Units; Oncology Surgery Department; Institute of Cancerology of Lorraine; Vandoeuvre-lès-Nancy France
- Oral Surgery Department; Faculty of Dentistry; Nancy France
| | - Ludovic Mansuy
- Pediatric Oncology Department; CHRU of Nancy; Vandoeuvre-les-Nancy France
| | - Dominique Droz
- Pediatric Dentistry Department; CHRU of Nancy; Vandoeuvre-les-Nancy France
- Pediatric Dentistry Department; Faculty of Dentistry; Nancy France
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Chen C, Xie N, Ling J, Du Y, Gu H. Proteomic analysis of the effects of CSF-1 and IL-1α on dental follicle cells. Mol Med Rep 2016; 14:2405-14. [PMID: 27484316 DOI: 10.3892/mmr.2016.5567] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 05/23/2016] [Indexed: 11/06/2022] Open
Abstract
Tooth eruption is a complex physiological process involving both osteogenesis and bone resorption. Signals from the dental follicle (DF) regulate bone remodeling during tooth eruption. Interleukin-1α (IL-1α) may be the initial promoter of tooth eruption, whereas colony‑stimulating factor‑1 (CSF‑1) may attract monocytes into the DF and stimulate osteoclast differentiation. In the present study, differential proteomics was employed to explore protein changes in rat DF cells (DFCs) under the effects of CSF‑1 and IL‑1α. A total of 47 protein spots were differentially expressed in rat DFCs, and 40 protein spots were identified by MALDI‑TOF‑MS. The identified proteins were grouped into functional categories including cytoskeletal proteins, metal‑binding proteins, proteins involved in secretion and degradation, cell cycle proteins and stress proteins. In IL‑1α‑induced rat DFCs, 31 proteins were upregulated compared with the control and included heat shock protein β‑1 (HSP25, also known as HSP27/HSPβ1), vimentin, TMEM43, the GTP‑binding protein Rab‑3D, 6‑pyruvoyl tetrahydrobiopterin synthase and actin. In total, 7 proteins were downregulated, including serum albumin, GIPC1, DNA primase large subunit, cullin‑5 and cyclin‑G1. In CSF‑1‑induced rat DFCs, 3 proteins were upregulated and 7 proteins were downregulated when compared with the controls. The upregulated proteins included the GTP‑binding protein Rab‑3D and α‑actin. The downregulated proteins included cullin‑5, serum albumin, PDZ domain‑containing protein and cyclin‑G1. The differential expression of vimentin, actin, HSP25 and Rab‑3D was verified by western blotting and reverse transcription‑quantitative polymerase chain reaction analyses. The present findings provide an insight into the mechanisms involved in tooth eruption.
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Affiliation(s)
- Chanchan Chen
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Research Institute of Stomatology, Guangdong Province Key Laboratory of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Nan Xie
- Department of Oral Pathology, Guanghua School of Stomatology, Research Institute of Stomatology, Guangdong Province Key Laboratory of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Junqi Ling
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Research Institute of Stomatology, Guangdong Province Key Laboratory of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Yu Du
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Research Institute of Stomatology, Guangdong Province Key Laboratory of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Haijing Gu
- Department of Pediatric Dentistry, Guanghua School of Stomatology, Research Institute of Stomatology, Guangdong Province Key Laboratory of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
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Chiu YH, Ritchlin CT. DC-STAMP: A Key Regulator in Osteoclast Differentiation. J Cell Physiol 2016; 231:2402-7. [PMID: 27018136 DOI: 10.1002/jcp.25389] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 03/24/2016] [Indexed: 01/09/2023]
Abstract
Osteoimmunology research is a new emerging research field that investigates the links between the bone and immune responses. Results from osteoimmunology studies suggest that bone is not only an essential component of the musculoskeletal system, but is also actively involved in immune regulation. Many important factors involved in immune regulation also participate in bone homeostasis. Bone homeostasis is achieved by a coordinated action between bone-synthesizing osteoblasts and bone-degrading osteoclasts. An imbalanced action between osteoblasts and osteoclasts often results in pathological bone diseases: osteoporosis is caused by an excessive osteoclast activity, whereas osteopetrosis results from an increased osteoblast activity. This review focuses on dendritic cell-specific transmembrane protein (DC-STAMP), an important protein currently considered as a master regulator of osteoclastogenesis. Of clinical relevance, the frequency of circulating DC-STAMP+ cells is elevated during the pathogenesis of psoriatic diseases. Intriguingly, recent results suggest that DC-STAMP also plays an imperative role in bone homeostasis by regulating the differentiation of both osteoclasts and osteoblasts. This article summarizes our current knowledge on DC-STAMP by focusing on its interacting proteins, its regulation on osteoclastogenesis-related genes, its possible involvement in immunoreceptor tyrosine-based inhibitory motif (ITIM)-mediated signaling cascade, and its potential of developing therapeutics for clinical applications. J. Cell. Physiol. 231: 2402-2407, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ya-Hui Chiu
- Division of Allergy, Immunology and Rheumatology, School of Medicine, University of Rochester, Rochester, New York
| | - Christopher T Ritchlin
- Division of Allergy, Immunology and Rheumatology, School of Medicine, University of Rochester, Rochester, New York
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Chen N, Gao RF, Yuan FL, Zhao MD. Recombinant Human Endostatin Suppresses Mouse Osteoclast Formation by Inhibiting the NF-κB and MAPKs Signaling Pathways. Front Pharmacol 2016; 7:145. [PMID: 27313530 PMCID: PMC4887464 DOI: 10.3389/fphar.2016.00145] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 05/17/2016] [Indexed: 11/14/2022] Open
Abstract
Rheumatoid arthritis is an autoimmune disease characterized by synovial hyperplasia and progressive joint destruction. As reported previously, recombinant human endostatin (rhEndostatin) is associated with inhibition of joint bone destruction present in rat adjuvant-induced arthritis; however, the effect of rhEndostatin on bone destruction is not known. This study was designed to assess the inhibitory effect and mechanisms of rhEndostatin on formation and function of osteoclasts in vitro, and to gain insight into the mechanism underlying the inhibitory effect of bone destruction. Bone marrow-derived macrophages isolated from BALB/c mice were stimulated with receptor activator of NF-κB ligand (RANKL) and macrophage colony-stimulating factor to establish osteoclast formation. Osteoclast formation was determined by TRAP staining. Cell viability of BMMs affected by rhEndostatin was determined using a MTT assay. Bone resorption was examined with a bone resorption pits assay. The expression of osteoclast-specific markers was analyzed using quantitative real-time PCR. The related signaling pathways were examined using a Luciferase reporter assay and western blot analysis. Indeed, rhEndostatin showed a significant reduction in the number of osteoclast-like cells and early-stage bone resorption. Moreover, molecular analysis demonstrated that rhEndostatin attenuated RANKL-induced NF-κB signaling by inhibiting the phosphorylation of IκBα and NF-κB p65 nuclear translocation. Furthermore, rhEndostatin significantly inhibited the activation of RANKL-dependent mitogen-activated protein kinases, such as ERK1/2, JNK, and p38. Hence, we demonstrated for the first time that preventing the formation and function of osteoclasts is an important anti-bone destruction mechanism of rhEndostatin, which might be useful in the prevention and treatment of bone destruction in RA.
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Affiliation(s)
- Nong Chen
- Department of Orthopaedic Surgery, Zhongshan Hospital, Qingpu Branch, Fudan University Shanghai, China
| | - Ru-Feng Gao
- Department of Orthopaedic Surgery, Zhongshan Hospital, Qingpu Branch, Fudan University Shanghai, China
| | - Feng-Lai Yuan
- Department of Orthopaedics and Central Laboratory, The Third Hospital Affiliated to Nantong University Wuxi, China
| | - Ming-Dong Zhao
- Department of Orthopaedics, Jinshan Hospital, Fudan University Shanghai, China
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Soares AP, do Espírito Santo RF, Line SRP, Pinto MDGF, Santos PDM, Toralles MBP, do Espírito Santo AR. Bisphosphonates: Pharmacokinetics, bioavailability, mechanisms of action, clinical applications in children, and effects on tooth development. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 42:212-217. [PMID: 26895384 DOI: 10.1016/j.etap.2016.01.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/18/2016] [Accepted: 01/20/2016] [Indexed: 06/05/2023]
Abstract
Bisphosphonates (BPs) avidly bind to calcium crystals and inhibit osteoclastic bone resorption, making them useful for treatment of skeletal disorders such as osteoporosis, Paget's disease, osteogenesis imperfecta and metastatic bone diseases. BPs therapeutically act by causing toxic effects on osteoclasts or interfering with specific intracellular pathways in those cells. BPs that possess nitrogen in their composition are called nitrogen-containing BPs (NBPs) and include alendronate, pamidronate, risedronate, ibandronate, and zoledronate. Simple BPs or non-NBPs do not have nitrogen in their composition, include etiodronate and clodronate, and were the first to be tested in animals and clinically used. Because BPs may be administered to pregnant women or children during deciduous and permanent teeth development, it is expected that they might disturb tooth eruption and development. A review of current literature on pharmacokinetics, bioavailability, mechanisms of action, and clinical applications of BPs in children, and their effects on tooth eruption and development is presented.
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Affiliation(s)
- Ana Prates Soares
- Multidisciplinary Institute of Health, Federal University of Bahia - UFBA, Rua Rio de Contas, 58, Quadra 17, Lote 58, Candeias, Vitória da Conquista, BA CEP 45.029-094, Brazil.
| | - Renan Fernandes do Espírito Santo
- Faculty of Pharmacy, Federal University of Bahia - UFBA, Rua Barão de Jeremoabo, S/N, Campus Universitário de Ondina, Ondina, Salvador, BA CEP 40.170-115, Brazil.
| | - Sérgio Roberto Peres Line
- Piracicaba Dental School, University of Campinas - UNICAMP, Av. Limeira, 901, Areião, Piracicaba, SP CEP 13.414-903, Brazil.
| | - Maria das Graças Farias Pinto
- School of Veterinary Medicine and Zootechny, Federal University of Bahia - UFBA, Av. Ademar de Barros, 500, Ondina, Salvador, BA CEP 40.170-110, Brazil.
| | - Pablo de Moura Santos
- Professor Edgard Santos University Hospital, Federal University of Bahia - UFBA, Rua Augusto Viana, S/N, Canela, Salvador, BA CEP 40.110-060, Brazil.
| | - Maria Betânia Pereira Toralles
- Institute of Health Sciences, Federal University of Bahia - UFBA, Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA CEP 40.110-902, Brazil.
| | - Alexandre Ribeiro do Espírito Santo
- Institute of Health Sciences, Federal University of Bahia - UFBA, Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador, BA CEP 40.110-902, Brazil.
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17
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Ultrastructural and biochemical analysis of the effects of alendronate on salivary glands of young rats. Arch Oral Biol 2014; 59:1307-11. [DOI: 10.1016/j.archoralbio.2014.07.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 07/25/2014] [Accepted: 07/26/2014] [Indexed: 12/29/2022]
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18
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Ultrastructural and immunohistochemical study of the effect of sodium alendronate in the progression of experimental periodontitis in rats. Microsc Res Tech 2014; 77:902-9. [DOI: 10.1002/jemt.22413] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 07/18/2014] [Indexed: 01/08/2023]
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Rothbarth CP, Bradaschia-Correa V, Ferreira LB, Arana-Chavez VE. Effects of the bisphosphonate alendronate on molars of young rats after lateral luxation. Dent Traumatol 2014; 30:415-22. [PMID: 24890501 DOI: 10.1111/edt.12116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND AIM The bisphosphonate alendronate (ALN) was employed with the aim of investigating its effects on dental and periodontal tissues after lateral luxation of developing molars. MATERIAL AND METHODS Twenty-one-day-old Wistar rats had their second upper molars laterally luxated. Daily 2.5 mg kg(-1) ALN injections started at the day of the luxation; controls received sterile saline solution. The teeth were analyzed 7, 14, and 21 days after the procedure. On the days cited, the maxillae were fixed, decalcified, and embedded in paraffin or Spurr resin. The paraffin sections were stained with H&E, incubated for TRAP histochemistry or immunolabeled for osteopontin (OPN). Spurr ultrathin sections were examined in a transmission electron microscope. RESULTS After 21 days, the root apex of luxated molars without ALN was wide open and disorganized and also covered by an irregular layer of cellular cementum, which was not observed in ALN-treated animals. Ankylosis sites were observed in ALN rats in both luxated and non-luxated teeth. The TRAP-positive osteoclasts were more numerous in ALN group, despite their latent ultrastructural appearance without the presence of resorption apparatus compared to controls. OPN immunolabeling revealed a thick immunopositive line in the dentin that must be resultant from the moment of the luxation, while ALN-treated specimens did not present alterations in dentin. CONCLUSION The present findings indicate that alendronate inhibits some alterations in dentin and cementum formation induced by dental trauma.
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Affiliation(s)
- Cláudia Pires Rothbarth
- Department of Biomaterials and Oral Biology, University of São Paulo School of Dentistry, São Paulo, Brazil; Department of Dentistry, Federal University of Pará, Belém, Brazil
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